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6. Other than phytomining, which of the following is another way to extract copper from low grade ores?

  • Smelting
  • Electrolysis
  • Bioleaching
  • Displacement

7. What is the problem with extracting copper from ores?

  • Copper rich ores are running out
  • It is expensive
  • It requires a lot of work
  • It cannot be done

8. In phytomining, what must is grown and burned in copper ore?

  • Plants
  • Bacteria
  • Fungus
  • Miley Cyrus

9. What is one of the disadvantages of electrolysis

  • It doesn't always work
  • It is expensive
  • It is a difficult process
  • It is a waste of time